Support beam



FIG. 1 is a perspective view of the support post;

FIG. 2 is a top view thereof, with the bottom view being a minor image thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a back side view thereof. 

CLAIM The ornamental design for a support beam, as shown and described. 